quarkus: field injection of package-private fields for subclasses in dependent modules fails with IllegalAccessError

Describe the bug When a project extends classes in another jar, field injection on those subclasses with package-private or protected accessibility is failing with IllegalAccessError.

Expected behavior Should be able to extend subclasses in a dependent JAR and have field injection of base classes work normally.

Actual behavior

Caused by: java.lang.IllegalAccessError: tried to access field org.acme.quickstart.MyBaseService.configStoreEndpoint from class org.acme.quickstart.MyService_Bean
	at org.acme.quickstart.MyService_Bean.create(MyService_Bean.zig:685)
	at org.acme.quickstart.MyService_Bean.create(MyService_Bean.zig:579)
	at io.quarkus.arc.impl.AbstractSharedContext.createInstanceHandle(AbstractSharedContext.java:80)
	at io.quarkus.arc.impl.ComputingCache$CacheFunction.lambda$apply$0(ComputingCache.java:99)
	at io.quarkus.arc.impl.LazyValue.get(LazyValue.java:26)
	at io.quarkus.arc.impl.ComputingCache.getValue(ComputingCache.java:41)
	at io.quarkus.arc.impl.AbstractSharedContext.get(AbstractSharedContext.java:25)
	at org.acme.quickstart.MyService_ClientProxy.arc$delegate(MyService_ClientProxy.zig:124)
	at org.acme.quickstart.MyService_ClientProxy.getKeyPrefix(MyService_ClientProxy.zig:275)
	at org.acme.quickstart.GreetingResource.hello(GreetingResource.java:25)
	at org.acme.quickstart.GreetingResource_ClientProxy.hello(GreetingResource_ClientProxy.zig:190)

To Reproduce Steps to reproduce the behavior:

1. Build trivial “common” module: https://github.com/jordanglassman/quarkus-cdi-bug-common
2. Run quarkus app that depends on “common”: https://github.com/jordanglassman/quarkus-cdi-bug-app
3. cause class to be loaded with curl http://localhost:8080/hello
4. observe Caused by: java.lang.IllegalAccessError: tried to access field... when class is loaded

Environment (please complete the following information):

• Output of uname -a or ver:

$ uname -a
Darwin ip-192-168-1-137.ec2.internal 18.2.0 Darwin Kernel Version 18.2.0: Mon Nov 12 20:24:46 PST 2018; root:xnu-4903.231.4~2/RELEASE_X86_64 x86_64

• Output of java -version:

$ java -version
java version "1.8.0_144"
Java(TM) SE Runtime Environment (build 1.8.0_144-b01)
Java HotSpot(TM) 64-Bit Server VM (build 25.144-b01, mixed mode)

• GraalVM version (if different from Java): N/A
• Quarkus version or git rev: 1.2.1Final

Additional context I noticed that the problem does not occur if the “common” module is part of the quarkus app project (ie. a standalone maven module in the quarkus app project).